公开(公告)号：US20200212275A1

公开(公告)日：2020-07-02

申请号：US16716388

申请日：2019-12-16

Applicant: LG Display Co., Ltd.

Inventor： Mingeun CHOI ,  KeumKyu MIN ,  Soyoung JO ,  Yonghoon CHOI

IPC: H01L33/58 ,  H01L33/38 ,  H01L25/075 ,  H01L33/50

Abstract: A light emitting display apparatus is disclosed, which can improve light extraction efficiency of light emitted from a light emitting diode. The light emitting display apparatus comprises a substrate including a plurality of pixel areas having an opening area, an uneven portion arranged in the opening area, and a light emitting diode arranged over the uneven portion, the uneven portion may have roughness average value of about 0.19 to about 0.29 for a unit size.

公开(公告)号：US20250098391A1

公开(公告)日：2025-03-20

申请号：US18966133

申请日：2024-12-03

Applicant: LG Display Co., Ltd.

Inventor： Nayoung LEE ,  Yonghoon CHOI ,  Soyoung JO ,  Mingeun CHOI

IPC: H01L27/15 ,  H01L33/38 ,  H01L33/50

Abstract: A light-emitting display device includes: a substrate; a plurality of pixels on the substrate, each pixel including an opening area; a light extraction pattern disposed in each opening area, the light extraction pattern including a plurality of concave portions spaced apart from each other, and a protruding portion surrounding each of the plurality of concave portions; and a light-emitting device layer including a light-emitting layer over the light extraction pattern, and a non-emission area overlapping a top portion of the protruding portion between the two adjacent concave portions.

公开(公告)号：US20180006264A1

公开(公告)日：2018-01-04

申请号：US15638765

申请日：2017-06-30

Applicant: LG DISPLAY CO., LTD.

Inventor： KangJu LEE ,  Sookang KIM ,  Wonhoe KOO ,  Hyunsoo LIM ,  Mingeun CHOI ,  Yonghoon CHOI

IPC: H01L51/52 ,  H01L51/00 ,  H01L51/50 ,  H01L27/32

CPC classification number: H01L51/5212 ,  H01L27/3246 ,  H01L27/3279 ,  H01L27/3288 ,  H01L51/0014 ,  H01L51/5008 ,  H01L51/5032 ,  H01L2227/323

Abstract: An organic light-emitting display device includes a substrate defining an emission area and a non-emission area; an insulating layer on the substrate and having at least two grooves being defined at a portion of the insulating layer corresponding to the non-emission area; a first electrode on the insulating layer at a portion of the insulating layer corresponding to the emission area; an auxiliary electrode on the insulating layer and spaced apart from the first electrode, the auxiliary electrode being on at least a portion of the insulating layer having the at least two grooves; a bank pattern on portions of the first and auxiliary electrodes; a barrier on the auxiliary electrode and separated from the bank pattern, the barrier being formed of a same material as the bank pattern; an organic light-emitting layer on the first electrode; and a second electrode on the organic light-emitting layer.

公开(公告)号：US20220199681A1

公开(公告)日：2022-06-23

申请号：US17545617

申请日：2021-12-08

Applicant: LG Display Co., Ltd.

Inventor： Nayoung LEE ,  Yonghoon CHOI ,  Soyoung JO ,  Mingeun CHOI

IPC: H01L27/15 ,  H01L33/38 ,  H01L33/50

Abstract: A light-emitting display device includes: a substrate, a plurality of pixels on the substrate, each pixel including an opening area, a light extraction pattern disposed in each opening area, the light extraction pattern including: a plurality of concave portions spaced apart from each other, and a protruding portion surrounding each of the plurality of concave portions, and a light-emitting device layer including: a light-emitting layer over the light extraction pattern, and a non-emission area overlapping a top portion of the protruding portion between the two adjacent concave portions.

公开(公告)号：US20180254429A1

公开(公告)日：2018-09-06

申请号：US15971798

申请日：2018-05-04

Applicant: LG DISPLAY CO., LTD.

Inventor： KangJu LEE ,  Sookang KIM ,  Wonhoe KOO ,  Hyunsoo LIM ,  Mingeun CHOI ,  Yonghoon CHOI

IPC: H01L51/52 ,  H01L51/50 ,  H01L51/00 ,  H01L27/32

CPC classification number: H01L51/5212 ,  H01L27/3246 ,  H01L27/3279 ,  H01L27/3288 ,  H01L51/0014 ,  H01L51/5008 ,  H01L51/5032 ,  H01L2227/323

Abstract: An organic light-emitting display device includes a substrate defining an emission area and a non-emission area; an insulating layer on the substrate and having at least two grooves being defined at a portion of the insulating layer corresponding to the non-emission area; a first electrode on the insulating layer at a portion of the insulating layer corresponding to the emission area; an auxiliary electrode on the insulating layer and spaced apart from the first electrode, the auxiliary electrode being on at least a portion of the insulating layer having the at least two grooves; a bank pattern on portions of the first and auxiliary electrodes; a barrier on the auxiliary electrode and separated from the bank pattern, the barrier being formed of a same material as the bank pattern; an organic light-emitting layer on the first electrode; and a second electrode on the organic light-emitting layer.

公开(公告)号：US20240423048A1

公开(公告)日：2024-12-19

申请号：US18820065

申请日：2024-08-29

Applicant: LG Display Co., Ltd.

Inventor： Yonghoon CHOI ,  KeumKyu MIN ,  Mingeun CHOI

IPC: H10K59/131 ,  H10K50/842 ,  H10K59/121

Abstract: A light emitting display apparatus includes a substrate configured to include a display area with a plurality of pixel areas, and a non-display area surrounding the display area, and a planarization layer disposed at the display area and partially at the non-display area. The planarization layer is configured to include an uneven pattern portion disposed at the non-display area, and the uneven pattern portion is configured to include a plurality of concave portions.

公开(公告)号：US20220069053A1

公开(公告)日：2022-03-03

申请号：US17410372

申请日：2021-08-24

Applicant: LG Display Co., Ltd.

Inventor： Yonghoon CHOI ,  KeumKyu MIN ,  Mingeun CHOI

IPC: H01L27/32 ,  H01L51/52

Abstract: A light emitting display apparatus includes a substrate configured to include a display area with a plurality of pixel areas, and a non-display area surrounding the display area, and a planarization layer disposed at the display area and partially at the non-display area. The planarization layer is configured to include an uneven pattern portion disposed at the non-display area, and the uneven pattern portion is configured to include a plurality of concave portions.

公开(公告)号：US20190393448A1

公开(公告)日：2019-12-26

申请号：US16453070

申请日：2019-06-26

Applicant: LG Display Co., Ltd.

Inventor： Yonghoon CHOI ,  Jintae KIM ,  Dongmin SIM ,  KangJu LEE ,  Sookang KIM ,  Taeshick KIM

IPC: H01L51/52 ,  H01L27/32 ,  H01L51/50

Abstract: Disclosed is a light emitting display device that can enhance light extraction efficiency of light which is emitted from a light emitting element. The light emitting display device includes an overcoating layer on a substrate and including a plurality of protruding portions, a first electrode on the plurality of protruding portions, a light emitting layer on the first electrode, and a second electrode on the light emitting layer. The first electrode has a contour which conforms to contour of the plurality of protruding portions. The light emitting layer has a contour different from the contours of the plurality of protruding portions.